Multiple needle sewing machine



July 30, 1935. w. D. suENDERs MULTIPLE NEEDLE SEWING MACHINE 3 Sheets-Sheet l Filed June 18, 1930 j EL, E wl SW @www m /E ma E tw I iii N July 30, 1935. w. D. SUENDERS MULTIPLE NEEDLE SEWING MACHINE Filed June 18, 195ol '5 Sheets-Sheet 2 w. D. sUl-:NDr-:Rs 2,009,752

July 30, 1935.

MULTIPLE NEEDLE SEWING MACHINE 3 SheetS-Shee'fI 3 Filed June 18. 1930 Patented July 30,v 1935 Y UNITED STATES PATENToFFicE MULTPLE NEEDLE SEWING MACHDIE Walton D. Suenders, Berwyn, Ill, assignor to Uniony Special'Machine Company, Chicago, Ill., a corporation of Illinois Application June 18, 1930, Serial No. 462,031

7 Claims. (Cl. 112-167) 'I'he invention relates to new and useful mchine, that is the spacing of the lines of stitches. provements in sewing machines, and more par- In order to accomplish this, the needles are laterticularly to a multiple needle sewing machine. ally shiftable upon the needle head, and the loop- In a multiple needle SeWing machine for formers are likewise laterally shiftable upon the suping independent lines of stitches it is often desiraporting member therefor. The present invention 5 ble to shift the position of the needles and loopers has to do particularly with the gaging means for so as to produce lines of stitches which are of positioning the loopers in predetermined set posidifferent spacing. tions for a different spacing of the lines of stitches.

An ObJ'eCt 0f the present inVentiOn iS t0 provide The loopers are mounted on independent carriers,

10 means Whereby the DOSitiOn Of the loopers may be and each carrier is mounted on a stud which is 10 shifted and xed in predetermined positions on the shiftable on the support which carries the stud. SllDDOrt therefery and Wherein the Operating Associated with each loopery is a gaging devicel rneanS fOr Said lOODerS may be adjusted to a prewhich determines a desired set position for the determined extent so that the timing of the looper. This gaging device is adjustable orshiftle loopers relative to the needles may be maintained able so that it may be used for determining several in their different set positions.. n settings of the looper with which it is associated.

A further Object 0f the inVentiOn iS t0 provide' The loopers are oscillated on their supports by a a easing means associated with eaehlooper which common link which is connected vto a.. bar that may be utilized fOr determining and holding the joins the loopers. Each looper has a ball stud,

y looper with which it is associated in predeterand the bar is provided with two independent 20 mined set positions. heads which engage the respective ball studs. One

A still further object of the invention is to proof these heads is adjustable on the supporting Vide a machine Wherein the lOOPei'S are Shiftable bar therefor, and means is provided for setting from one Set position to another, and wherein the the head in predetermined positions so that the operating means for said loopers maybe adjusted extent to whichthe means for oscillating the 25 t0 a predetermined eXtent S0 that the timing Of loopers is adjusted is a predetermined extent the loopers relative to the needles may be mainwhich will insure that the loopers will be properly tained in their different set positions. maintained in their timing with respect to the 'Iiiese and other objects will in part be obvious needles with which they cooperate. 3.0. and will in part be hereinafter more fully dis- Referring more in detail to the drawings the closed. invention is shown as applied to a sewing ma- In the drawings Which ShOW by Way 0f illustrachine which includes a supporting bed I carrytion one embodiment of the inventionting a work support 2. Mounted on the bed I is Figure 1 is a front View of a machine embodying a standard 3 carrying an overhanging arm 4. theinventiOn With parte broken away t0 ShOW the A needle bar 5 reciprocates in suitable bearing 35 Operating meChaniSrn in rear thereof; Y lugs-6, 6 at the'outer end of the overhanging arm Fig. 2 iS a plan VieW Of the PartS 0f the machine 4. The needle bar is reciprocated by means of a. beneath4 the WOrk SnDDOrt With the feed dOg needle lever 'I pivoted at 8 and oscillated by an broken away t0' ShOW the 1009er Operating nieeheccentric strap 9 cooperating with an eccentric anSm beneath the Same; on the main shaft I0. At the lower end of the 40 Fig. 3 is an enlarged front View 0f the lOODer needle bar 5 isa needle clamping head I I. Support, thev 1oopers mounted thereon, and the lMounted in this clamping head Il are two needles 4means connected to the loopers for oscillating the l2 and l 3 The material is held on the Work sup- .Same Y port by a presser foot I4, and is fed across the y Fig. 4 is a sectional View On the line 4--4 Of work support byafeed dog I5. Cooperating with 45 Fig. 3; I -the needle I2 is a looper I6, and cooperating with e Fig. 5 iS a SeCtiOnal View 0n the line 5-5 v0f -the needle I3 is a looper I1. The looper I6 is Fig- 3, and mounted on a looper carrier I8. The looper car- Fig. 6 is an enlarged front view of the gaging Yner Is is in turn mounted for oscillation on a devicesand showing the means with which they supporting Stud |9 0f the usual chanel-,en The 50 @Generate ih the DOSitiOning V0f the l00pers. looper Il is mounted on a carrier 20 which in turn l The invention iS directed t0 a multiple needle is mounted for oscillation on a supporting stud (sewing machine wherein the needles and asso- 2|.' The supporting studs I9 and 2I are mounted .'ciatedloopers form independent lines of stitches. von a supporting yoke 22 which is of the usual i. -Itis often desirable to change the 'gage of the macharacter, and this yoke Ycarries a shaft 213 pro- 55 Cil vided with a forked arm 24 cooperating with an eccentric on the main shaft IB. This eccentric and forked arm impart a rocking motion to the yoke 22, and this gives to the loopers their needle avoiding movement. The loopers are oscillated by means of a link 25 which is connected to a bar 25, and the bar 26 is in turn connected to the two looper carriers. .The link 25 is pivoted at 2l to an oscillating member S28 which in turn is connected to a link 29 attached at 35 to the needle lever extension 3i. This oscillating mechanismfor the loopers is of the usual construction. As the needle lever oscillates it not-only reciprocate-s the needle bar but it will also impart through the link 26 oscillations to the two looper carriers. The stud i9 on which the looper carrier l5 is mounted extends through a slot 32 in .the supporting yoke 22. Said stud is provided with an integral collar 33, and a nut 34 on the end ofy the4 stud clamps the stud in its ,set positions on the supporting yoke. The stud 2lA extends through a slot 35. This stud is Vprovided with an integral collar 35 and. with a nute3l for holding ythe stud in set positions on the supporting yoke. VAssiociated with each` looper is a gaging device for aiding in setting of the loopers in predetermined positions for oscillation.` Mounted on the stud I9 between the collar `33 and the supporting yoke is a gaging device 38. This gaging device kis in the form of a disk. It is freely mounted on the stud vso `that it may be turned when the nut 34 is released. The disk, as Vshown in the drawings, is provided with threegaging recesses 39, 4B and 4I. These gaging recesses as shown are segmental in shape, and are` adapted to contact with a gaglng-post 42. This vgaging post, as Ashown in the drawings, is in the lform -of a large-headed screw, which is threaded into the yoke vsupport 22. 'Ihe lscrew has a relatively large cylindrical head. The'recesses are shaped lto t the gaging post 42. These recesses are formedso that they are spaced radially from the center of the stud I9 at different distances. In Fig. 6 of the drawings -the disk is shown in full lines positioned Vso that therecess 3S makes contact with the peripheral surface of the head of the g-aging screw or post 42. When so positioned then the nut 34 is turned down-so as to clamp'the looper in `this set position. By loosening the nut and turning the disk any one of the vrecessesmay bebrought into contact with the gaging post and thus it `Vis that this looper supporting stud Hirnay be rshifted to three different predetermined set positions. Through the aid'of this gaging -disk'the looper can be shifted Ifroinone setting to'afnother yand `always brought back to vthe samewset position. Cooperatingrwith the stud 21! is a similargaging disk 43 which is provided with a recess 44 corresponding to the recess 139 as to Aits distance from vthe center of the supportingstud'l; also areccss '45 corresponding ,to therecess Y4l) and'rarecess d6 corresponding to "theggaging recessfl, These recesses 44, 45- and 4G arefadapted to be brought linto Contact with the same rgag'ing swe'w orjp'ost 42. It will be seen that means'has been .provided for either shifting one yof lthe *loopers or 4shifting both of the loopers from one-fpredeterminedset position to another `predetermined set position. This is accomplished bygagingdevices associated with each loopersfupport, and functioning to .de-

termine each set positionof the loopers.

l The bar 25whichoscillates the-loopersis'provided with a ball stud 41-with which 'a'head48 on the end of the link 25 makesengagement. The looper carrier i6 vis Vprovided with a balls'tud 49.

1a collar 55 which is provided with a rib 5l'.

left .of .the vsupporting:yoke 22 to the next set position, then 'the bolt 52 is released and the rib 51 is A head 5D is secured to the bar 25 and is adapted to cooperate with this ball stud 49. This head is adjustably mounted on the bar 26 so that it may be shifted in a direction lengthwise of the bar. To this end the bar is provided with a slot 5I. A clamping bolt 5E passes through the slot, and is threaded into the head which cooperates with the ball stud 43. The outer :face of the bar 25 Visprovided with three vertical grooves or recesses 53, 5 4 and 55. Mounted on the bolt 52 is This rib V5'! is Vadapted to engage any one of the grooves or recesses A53, 54 'or 55. When the looper supportY vH3 is shifted from vits present setting at the shifted .to the groovesor recess 55. By this shifting of the position ofthe head 50 the connection ibetween the looper carrier and the stud 4'? has been shortened toprecisely the same extent as the stud has 'been shifted on the yoke support. Therefore, the Vlooperin its new setting with the new setting oflthe needle will retain its original timing relativev to the reciprocation of the needle.

The looper carrier 2BV isl provided with a ball stud 58. A head59cooperates with this'ball stud, and'is secured to thebar' by means of a bolt 50. The bar 2B is slotted as indicated at 6i, and this bolt '6B passes through this slot. This enables the head Atolhe shifted endwise of the bar. A similar setting means may be provided for this head ifdesi'red.J Each head 5B and 59 has a rib and grooveV Yconnection withv the bar which prevents these heads ffromturning on their support b'olts. Means has beenl provided for positively shifting the head 5B. .'This'means includes a link 52 which has an opening therethrough to receive the bolt 5D. The 'other end of the link has an opening therethrough which receives an eccentric end portion 63 of a knurled collar 64. A screw 65 holds this knurled collar in .set position. By loosening the Vscrew `F55 the .knurled collar may be turned, .and .this .through the operation of the eccentric portion 53 will nove the link 62 endwise. The bolt 6B is-of'course rst released so that it can be shifted and then the turning of the'knurled collar will positively shift the bolt and the head 58 with which it .is connected in one direction-or the other andretain it -in its set position.

The link 25 is connectedto the heads at the ends thereof by right .and left hand threads .25a and 25h. By turning this linky the position of the loopers relative to the needle lever extension may be varied and in .this way the timing of the loopers change. In .thesetting up of 'the machine there are sometimes inaccuracies vin the dimensions of .the loopers .and-the .shifting means including the knurled .collar A64,.described above,enables a setting of the loopers to be .made so that both looper points will V.be vproperly .positioned for the needles ,of ra .predeterminedgage When it is desired to change thetirning yor' the loopers this is accomplished by turning the link 25. 'I'his brings about the initial` setting of the loopers and the timing thereof. When it is desired to change from one *gage to another, then ithe mechanism described above may be utilized for shifting the left-hand looper and. the'connection to the operating means therefor. Notonly is each looper provided with 79 its gaging means forsetting the position in which it `is to oscillate, but means is also provided for varying the connection of the respective looper carriers to the .means which imparts'oscillations M thereto sci that the timing .of vthe loopers-may be 75 maintained with respect to the needles with which they are associated in their various set positions.

It is obvious that minor changes in the details of construction and the arrangements of the parts may be made without departing from the spirit of the invention as set forth in the appended claims.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent, is:-

1. In a sewing machine, a needle, a looper, an oscillating looper carrier, means associated with said oscillating looper carrier permitting the same to be shifted bodily to one of a predetermined series of set oscillating positions,'means for imparting oscillations to said carrier, and means for permitting said oscillating means to be adjusted and for predetermining the adjustment thereof to one of a similar series of predetermined set positions so as to maintain the timing of the looper and the needle.

2. In a sewing machine, a plurality of needles, a looper for .each needle, a looper carrier for each looper, means associated with each looper carrierY permitting either of said carriers to be shifted bodily to one of a predetermined series of set oscillating positions, means for imparting oscillations to said carriers, and means for permitting said oscillating means to be adjusted to one of a similar series of predetermined set positions so as to maintain the timing of each looper and the needle associated therewith.

3. In a sewing machine, a needle, a looper, a looper carrier, a supporting stud on which said looper carrier is mounted, a supporting yoke to which said stud is attached, means permitting said supporting stud to be shifted on said supporting yoke, a gaging disk mounted on said stud and having a plurality of recesses arranged at different distances from the kcenter of the stud, and a gaging post carried by the yoke with which said disk cooperates for the placing of the looper in predetermined set oscillating positions.

4. In a sewing machine, a plurality of needles, a looper for each needle, a looper carrier for each looper, a supporting yoke for said looper carriers, each carrier being mounted on the supporting yoke so that it may be adjusted lengthwise of the yoke, means associated with each looper carrier whereby said looper carrier may be placed in predetermined set oscillating positions on said yoke, said last named means including a gaging disk associated with each carrier, and a gaging post mounted on the supporting yoke, each disk having a series of recessesadapted to receive the post, said recesses being set at different distances from the center of the looper carrier with which it is associated.

5. In a sewing machine, a plurality of needles, a looper for each needle, a looper carrier for each looper, a supporting yoke for said looper carriers, each carrier being mounted on the supporting yoke so that it may be adjusted lengthwise of the yoke, means associated with each looper carrier whereby said looper carrier may be placed in predetermined set oscillating positions on said yoke, means for oscillating said looper carriers including a bar, a ball stud attached to each carrier, heads cooperating with the respective ball studs on the carriers, and means for adjustably securing said heads to the bar so that said heads may be shifted lengthwise of the bar.

Y 6. In aV sewing machine, a plurality of needles, a looper for each needle, a looper carrier for each looper, a supporting yoke for said looper carriers, each carrier being mounted on the supporting yoke so that it may be adjusted lengthwise of the yoke, means associated with each looper carrier whereby said looper carrier may be placed in predetermined set oscillating positions on said yoke, means for oscillating'said looper carriers including a bar, a ball stud attached to each carrier, heads cooperating with the respective ballstuds on the carriers, means for adjustably securing said heads to the bar so that said heads may be shifted lengthwise of the bar, and means whereby one of said heads may be placed in predetermined set positions.

7 In a sewing machine, a plurality of needles, a 

